Hobart b



(No Model.)

H. B. IVES.

SASH'FASTENBR.

No. 352,617. Patented Nov. 16, 1886.

llVl/E/I/TOI? WITNESSES.-

6AM %-Q S (git/ S3,

ATTORNEY 5. Phulo-Lflhugmphcr. Washington. D. Q

NITED STATES PATENT Fries.

HOBART B. IVES, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO HOBART B. IVES &CO., OF SAME PLACE.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 352,617, dated November16, 1886.

Anplicatirn filed September 13, 1886. Serial No. 213,442. (No model.)

To aZZ whom it may concern.-

Be it known that I, HOBART B. IvEs, a resident of the town of New Haven,in the State of Connecticut, have invented new and useful Improvementsin Fastenings for Meeting-Rails of Sashes, of which the following is aspecification.

Myinvention has for its object to provide an improved fastening formeeting-rails of sashes, and relates to that class of sash-fasteners inwhich a latch is mounted on a suitahlebaseplate and adapted to'swingagainst and engage the latch-hook and draw and lock the railstogether,operated by an external knob orhandle.

My invention embodies novel means for operating the latch; and itconsists in combining a pinion with the operating knob or lever,andsuitable gear-teeth upon the latch for meshing with the pinion, andmeans for locking the latch at each extremity of its throw, ashereinafter more fully described and claimed.

1n the accompanying drawings, Figure 1 shows a view of my improved lockin elevation. Fig. 2 is a view of the lower side of the knob or handle.Fig. 3 is a side elevation of the latch, partly in section. Fig. 4 is aplan view of the base-plate. Fig. 5 is a section through the base-plate.Fig. 6 is a plan view of the base-plate and latch in unlocked position.Fig. 7 is a view of the same in locked position, and Fig. 8 shows aconverse modification of a part of the mechanism.

Referring to the drawings, A denotes the raised basc-plate, which isformed with a circular perforation, 1), near its center, and providedwith a vertical stud or projection, h, near the perforation. Twonotches, c c, are formed in the edge of the base-plate in the positionscovered by the latch at the extremities of its throw, and a rim, d, isformed around the per foration b on the under side of the plate.

The plate A is secured to the top rail of the lower sash, and a smallerplate, E, is secured to the lower rail of the upper sash, and providedwith a hook or projection, f, for the engagement of the latch. The latchJ is formed with a hook part, for engaging the projec' tion on the plateE, and has a central longitudinal slot, i, for receiving the projectionh on the main base-plate, by which it is keptin position. I The latch isprovided with a pin, 70, which fits the notches c c in the base-plate,and is formed with a rack, m, or series of gearteeth, as shown in Figs.6 and 7.

The knob or lever L, for operating the latch, .is shaped to cover thecentral portion or body of the latch, and is formed with or without ahandle, Z, to act either as a knob or lever, as required. A pinion orgear, a, is secured on the under side of the knob, preferably castthereon, and a vertical stud, t, is cast or riveted in the knobcentrally through the pinion. The knob surmounts the latch with its studextending down through the perforation in the base-plate, and its pinionintermeshing with the teeth on the latch. A spring, 0', and washer r areplaced upon the end of the stud t, which is then riveted over, thusfastening all the parts of the lock securely together.

In operation, as the knob and its pinion is turned back and forth, itsteeth engage the teeth on the latch and swing the latch to and fro anddraw it longitudinally at the extremities of its movement, sothat thepin it entersin the notches c c inthe base-plate. In these po sitionsthe latch cannot be turned, except by the movement of the knob, beingheld by the pink andthe projection h on the base-plate. The rack m isshaped to conform to the path and movement of the latch, so as to engagethe pinion at every portion of its travel. The position of the center ofthe pinion may be changed somewhat from that shown in the drawings,provided the rack is modified to conform to such alteration; but theform shown is preferable on account of its compactness. I prefer toproportion the gears so that about half a turn of the knob throws thelatch through about a quarter-turn, as shown in Figs. 6 and 7, in whichthe latch is represented in both its unlocked and locked positions withthe knob removed and a section of the pinion designated to show theaction of the parts. It will be seen that the latch engages with theprojectionf on thebase-plate E and then draws the sashes firmlytogether, and is then locked by the engagement of the pin 7a with thenotch c. l he other notch, however, simply holds the latch open, whichfeature is not so important as the other, and may be dispensed with,

if desired. Its use, however,is preferable. As the parts of the latchare pressed together by the spring 0*, suflicient friction is producedto hold the latch and prevent it from jarring out of the notches.

It is evident that instead of thepin k in the latch and itsreceiving-notches cc in the baseplate anopposite notch, 8, may be formedin the latch and the base-plate provided with corresponding projections,h h, which converse modification is shown in Fig. 8; also, both of thesemodifications may be combined in one sash-fastener, if desired, theeffect remaining unchanged.

I claim as new and desire to secure by Letters Patent- 1. In fasteni-ngsfor meeting-rails for sashes, the combination, with a base-plate, of alatch guided on the base-plate and provided with a rack or series ofgear-teeth, a knob or lever arranged to turn upon the base-plat e,andprovided with a pinion or gear for engaging the teeth of the latch toclose the fastener and draw the sashes together, and means for lockingthe latch at either or both extremities of its throw, substantially asand for the purpose described. I

cured upon an external knob or lever sup-" ported on the base-plate andintermcshin g with the teeth of the latch, as and for the purposespecified.

3. In combination, the base-plate A, having 7 the central perforation,12, pin h, and slots 0 0, Y the hooked latch J, having the pin k andcentral slot, 5, by which it is guided upon the projection h on thebase-plate, and provided with a rack or series of gear-teeth, the knobor 1ever L, mounted upon the base-plate, and provided with a pinion orgear for intermeshing with the teeth of the latch, and the base-plate E,having a raised projection or catch,f, all combined substantially in themanner and for the purpose described.

HOBART B. IVES.

Witnesses:

JULIUS Twrss, DAVID K. ANDREWS.

